*{
    margin: 0;
    padding: 0;
}
.yzkhuashubox2{
    width: 100%;
    height: 100px;
    background-color: green;
}
.yzkhuashubox2p{
    font-size: 50px;
    color: white;
    text-align: center;
    line-height: 100px
}

.yzkhuashubox3p{
    font-size: 30px;
    color: white;
    text-align: center;
    line-height: 100px;
    background-color: red;
}

.yzkphbTop{
    width: 100vw;
    height: 5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}  